3v4l.org

run code in 500+ PHP versions simultaneously
<?php var_dump( mb_detect_encoding("\xDC", ['UTF-8']), mb_detect_encoding("Ü", ['UTF-8']) );
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
string(5) "UTF-8" string(5) "UTF-8"
preferences:
84.23 ms | 1965 KiB | 4 Q